CN2604225Y - Whitestone water membrane rotary boiling desulfuration dust separator - Google Patents
Whitestone water membrane rotary boiling desulfuration dust separator Download PDFInfo
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- CN2604225Y CN2604225Y CN 03242811 CN03242811U CN2604225Y CN 2604225 Y CN2604225 Y CN 2604225Y CN 03242811 CN03242811 CN 03242811 CN 03242811 U CN03242811 U CN 03242811U CN 2604225 Y CN2604225 Y CN 2604225Y
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- tower
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Abstract
A crushed granite water film rotary boiling desulfurizating dust-removing device, which comprises a main tower and an auxiliary tower of the crushed granite water film dust-removing device, an external dehydrator and a smoke-air heater connected in series and in sequence on the lower part of the flue gas pipe and the auxiliary tower, a venture tube is arranged along the tangential direction on the lower part of the main tower, the bottom part of the main tower is connected with a waste liquid tube, the inside of the main tower is arranged from upside down in sequence with a water blocking device, a boiling device and a hydro-cyclone, the throat of the axes of the venture tube is arranged in axial direction with an A nozzle, the lower part of the water blocking device on the axis of the main tower is arranged in axial direction with a B nozzle jetting downwards, and the lower part of the hydro-cyclone is arranged in axial direction with a C nozzle jetting downwards, a desulfurizating liquid conduit is arrange outside the main tower, branch pipes separately connected with the A nozzle, B nozzle and C nozzle are arranged on the conduit. The crushed granite water film rotary boiling desulfurizating dust-removing device can improve the desulfurizating and dust-removing efficiency of the coal boiler flue gas without generating secondary pollution, the investment is saved, and the operation cost is low.
Description
Technical field
The utility model relates to a kind of purifier of waste gas, removes particularly that the granite with water film of sulfur dioxide and flue dust revolves the desulfation dust-extraction device that boils in the waste gas.
Background technology
At present, the heating boiler of China's fire coal and Industrial Boiler great majority adopt gallet water curtain dust collector to purify flue gas, be characterized in: the anticorrosion antiwear performance is good, long service life, small investment, operating cost is low, and desulfurization and dedusting are all had certain effect, at the boiler pollutant discharge standard of China's promulgation, sulfur dioxide is 650mg/m
3, flue dust is 180mg/m
3, the concentration of emission of employing gallet water curtain dust collector, sulfur dioxide is about 600mg/
3, flue dust is about 150mg/m
3, can both reach this standard.But, along with improving constantly of living standards of the people, the environment that people depended on for existence has just been proposed more and more higher requirement, Beijing is in order further to improve atmosphere quality, the provincial standard of boiler pollutant discharging has been proposed, standard from execution on the 1st November in 2003 is sulfur dioxide 150mg/m
3, flue dust 50mg/m
3, country also can progressively propose the discharge standard of higher sulfur dioxide and flue dust, and like this, gallet water curtain dust collector just can't reach this standard.At this situation, the desulfation dust-extraction device that boils is revolved from external introduction granite with water film in more domestic enterprises, but the expense of these plant investments and operation is very high, can't promote the use of.
The utility model content
The purpose of this utility model is to provide a kind of desulfurization dust-removing efficiency that can improve fire coal boiler fume, does not produce secondary pollution, reduced investment, and the granite with water film that operating cost is low revolves the desulfation dust-extraction device that boils.
For achieving the above object, the utility model granite with water film revolves the desulfation dust-extraction device that boils, the king-tower that comprises gallet water curtain dust collector, secondary tower and the external dehydrator that is connected in series successively with flue and secondary tower bottom, flue gas heater, bottom at described king-tower tangentially is equipped with Venturi tube, be connected with sewer pipe in the king-tower bottom, in king-tower, be provided with the dash device from top to bottom successively, ebullator, cyclone, Venturi tube axis superior laryngeal aperture place is provided with axial arranged A nozzle, the bottom of dash device is provided with the B nozzle of axial arranged downward injection and the C nozzle of the axial arranged downward injection in cyclone bottom on the king-tower axis, outside king-tower, be provided with the doctor solution pipeline, on this pipeline, be provided with branched pipe and connect nozzle respectively to A, B nozzle and C nozzle.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, wherein, be provided with an eddy flow plate and atomizer in the described cyclone, described eddy flow plate comprise inner ring, outer ring and be arranged on inner ring and the outer ring between several blades of radially arranging, the elevation angle of described blade is 30～50 °, and the radius ratio of described outer ring, inner ring is 2～4.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, and wherein, the blade of described eddy flow plate is 16～64.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, and wherein, described dash device is some blocks of chevron shaped flaps, and the spacing of flap is 25～60mm, and the angle of flap and horizontal plane is 25～60 °.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, and wherein, described ebullator has that of some holes is leaked column plate and the swirling flow atomizing device is formed above being, the aperture is 8～20mm, and percent opening is 40～60%.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, and wherein, described doctor solution is formulated with calcium oxide, magnesia and water, perhaps adopts alkaline waste waters such as brewery's biochemical exterior drainage.
The utility model granite with water film revolves the desulfation dust-extraction device that boils, owing in king-tower, be provided with ebullator and cyclone, make flue gas in king-tower, rotate rising, fully contact with the doctor solution of spray is reverse in tower, sulfur dioxide and flue dust are fully absorbed, be provided with the moisture that the dash device carries flue gas secretly and capture, it has following advantage:
1, desulfurization dust-removing efficiency height does not produce secondary pollution: average desulfuration efficiency＞95%, average dust removal efficiency＞98%; Behaviour
The waste water of making process recycles and does not efflux, and supplementing water is utilized boiler flushing cinder water, and waste residue applies to brickmaking outward.
2, environmental economical profit is good: make the SO in the boiler emission flue gas
2＜150mg/m
3, flue dust＜50mg/m
3, the flue gas woods
The graceful blackness of lattice reaches I level, NO
x＜300mg/m
3, can reduce SO simultaneously
2Total emission volumn.
3, reduced investment, operating cost is low.
4, prevent the fouling and the obstruction of equipment and pipeline: adopt the nozzle spray, will be adsorbed on the solid matter flushing in the tower at any time
Get off.
Description of drawings
Fig. 1 revolves the desulfation dust-extraction device structure chart that boils for the utility model granite with water film;
Fig. 2 revolves the process chart of the desulfation dust-extraction device that boils for the utility model granite with water film;
Fig. 3 is the A-A profile of Fig. 2 king-tower;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the C-C sectional view of Fig. 3;
Fig. 6 is the D-D sectional view of Fig. 3.
The specific embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Fig. 1 revolves the desulfation dust-extraction device structure chart that boils for the utility model granite with water film, the king-tower 10, the secondary tower 11 that comprise gallet water curtain dust collector, Venturi tube 4 is installed along the bottom tangent line of king-tower 10, secondary tower 11 bottoms are connected with flue 18, are respectively equipped with external dehydrator 12 and flue gas heater 17 on flue 18, and dash device 3 is installed respectively in the king-tower 10 of gallet water curtain dust collector from top to bottom, ebullator 2, cyclone 1, king-tower 10 bottoms are connected with sewer pipe 9, and king-tower is seen Fig. 3; Venturi tube 4 axis superior laryngeal aperture places are provided with axial arranged A nozzle 5, the bottom of dash device 3 is provided with the B nozzle 6 of axial arranged downward injection and the C nozzle 7 of the cyclone axial arranged downward injection in 1 bottom on king-tower 10 axis, outside king-tower 10, be provided with doctor solution pipeline 19, on this pipeline, be provided with branched pipe and connect respectively to A nozzle 5, B nozzle 6 and C nozzle 7.Be provided with an eddy flow plate and atomizer in the described cyclone 1, as shown in Figure 6, described eddy flow plate comprise inner ring, outer ring and be arranged on inner ring and the outer ring between 16～64 blades radially arranging, the elevation angle of described blade is 30～50 °, the radius ratio of described outer ring, inner ring is 2～4.Described dash device 3 is some blocks of chevron shaped flaps as Fig. 4, and the spacing of flap is 25～60mm, and the angle of flap and horizontal plane is 25～60 °.Described ebullator 2 is as Fig. 5, leaks column plate and the swirling flow atomizing device is formed for top of having some holes, and the aperture is 8～20mm, and percent opening is 40～60%.
The spray angle of nozzle is 30～120 °, and material is 316 stainless steels.
Figure 2 shows that the utility model granite with water film revolves the process chart of the desulfation dust-extraction device that boils, boiler smoke contacts SO in flue gas with the doctor solution mixing of the atomizing shape that sprays into A nozzle 5 at first through Venturi tube 4 in pipe
2Tentatively absorbed, flue dust is soaked and collision mutually, form graininess, flow to king-tower 10 bottoms with liquid stream, flue gas is by tangentially entering king-tower 10 bottoms, and along the rotation of tower wall upwards, grit in the flue gas is thrown to the tower wall under action of centrifugal force, the moisture film that the liquid that doctor solution that is sprayed into by C nozzle 7 and top flow down forms adheres to, and desulphurization reaction takes place simultaneously, makes grit and SO in the flue gas
2Obtain preliminary purification.Flue gas after the preliminary purification rises to the cyclone 1 that is made of eddy flow plate and atomizer, flue gas obtains double purification, flue gas continues to rise to by leaking the ebullator 2 that column plate and swirling flow atomizing device constitute, flue gas is purified once more, after dash device 3, secondary tower 11 and 12 dehydrations of external dehydrator on king-tower top, flue-gas temperature is reduced to about 45 ℃, through flue gas heater 17 flue gas is heated up again, prevent chimney 8 flowing water and corrode that the back of heating up is effluxed through chimney 8 by air-introduced machine 16.
Waste water behind the desulfurization and dedusting, sewer pipe 9 by king-tower 10 bottoms enters detritus tank 13, sedimentation basin 14 successively, and the water after heavy clear flows into clear water reserviors 15, and the water of clear water reserviors 15 adds after doctor solution transfers to PH8-9, recycle and do not efflux, the slag in the detritus tank 13 applies to brickmaking outward.
Desulphurization reaction is as follows:
Desulfurizing agent adopts CaO, MgO, perhaps directly utilize boiler flushing cinder water preparation doctor solution, perhaps adopt waste water or other alkaline waste water of brewery's biochemical treatment, utilize waste water to carry out the discharging that desulfurization both can reduce waste water, also can water reuse conserve water resource.
When adopting boiler flushing cinder water preparation doctor solution, because of wherein containing and MgO and CaO, calcium ion in the flushing cinder water and sulfate ion reaction generate calcium sulfate precipitation, have both reduced the concentration of sulfate ion in the recirculated water, have increased Mg (OH) again
2Activity, and the alkaline matter of flushing cinder water has reduced the consumption of MgO and CaO.
Important technological parameters:
Mg/S 0.6
Liquid-gas ratio 0.5～1L/m
3
SR 1100～1300Pa
Desulfuration efficiency＞95%
Efficiency of dust collection＞98%
The utility model granite with water film revolves the desulfation dust-extraction device that boils and is applicable to the various boilers of large, medium and small type, kiln, can adapt to the variation of boiler load to same boiler, is applicable to that also dust concentrations such as ferrosilicon stove, silico-calcium stove are high-leveled and difficult in the waste gas pollution control and treatment of dedusting.
When the test of the utility model desulfurization and dedusting was used for the boiler of 20t/h, discharged gas fume was as follows through monitoring result:
| Monitoring project | Concentration of emission (mg/g/m 3) | ||||||||
| Sulfur dioxide | Flue dust | Nitrogen oxide | Lingemann blackness | ||||||
| The mean concentration scope | Average | The mean concentration scope | Average | The mean concentration scope | Average | ||||
| The monitoring unit | Haidian District Environmental Protection Agency monitoring station | 17-18 | 17.5 | 26-28 | 27 | 177-182 | 179.5 | The I level | |
| Environment monitoring center, Beijing | 14 | 31 | |||||||
| SLEP-2000 is online | 15.5-18.7 | 17.3 | 19.4-24.5 | 21.3 | |||||
| Beijing's provincial standard " boiler pollutant comprehensive discharge standard " (DB 11/139-2002) | I period 02.3.1～03. 10.31 | 300 | 100 | 300 | The I level | ||||
| II period 03.11.1 rises | 150 | 50 | 300 | The I level | |||||
Claims (6)
1. a granite with water film revolves the desulfation dust-extraction device that boils, it is characterized in that: the king-tower (10) that comprises gallet water curtain dust collector, secondary tower (11) and the external dehydrator (12) that is connected in series successively with flue (18) and secondary tower (11) bottom, flue gas heater (17), in the bottom of described king-tower (10) Venturi tube (4) is installed tangentially, be connected with sewer pipe (9) in king-tower (10) bottom, in king-tower (10), be provided with dash device (3) from top to bottom successively, ebullator (2), cyclone (1), Venturi tube (4) axis superior laryngeal aperture place is provided with axial arranged A nozzle (5), the bottom of dash device (3) is provided with the B nozzle (6) of axial arranged downward injection and the C nozzle (7) of the cyclone axial arranged downward injection in (1) bottom on the king-tower axis, outside king-tower (10), be provided with doctor solution pipeline (19), on this pipeline, be provided with branched pipe and connect respectively to A nozzle (5), B nozzle (6) and C nozzle (7).
2. granite with water film as claimed in claim 1 revolves the desulfation dust-extraction device that boils, it is characterized in that: be provided with an eddy flow plate and atomizer in the described cyclone (1), described eddy flow plate comprise inner ring, outer ring and be arranged on inner ring and the outer ring between several blades of radially arranging, the elevation angle of described blade is 30～50 °, and the radius ratio of described outer ring, inner ring is 2～4.
3. granite with water film as claimed in claim 2 revolves the desulfation dust-extraction device that boils, and it is characterized in that: the blade of described eddy flow plate (1) is 16～64.
4. granite with water film as claimed in claim 3 revolves the desulfation dust-extraction device that boils, and it is characterized in that: described dash device (3) is some blocks of chevron shaped flaps, and the spacing of flap is 25～60mm, and the angle of flap and horizontal plane is 25～60 °.
5. granite with water film as claimed in claim 4 revolves the desulfation dust-extraction device that boils, and it is characterized in that: described ebullator (2) has that of some holes is leaked column plate and the swirling flow atomizing device is formed above being, the aperture is 8～20mm, and percent opening is 40～60%.
6. granite with water film as claimed in claim 5 revolves the desulfation dust-extraction device that boils, and it is characterized in that: described doctor solution is formulated with calcium oxide, magnesia and water, perhaps adopts alkaline waste waters such as brewery's biochemical exterior drainage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242811 CN2604225Y (en) | 2003-03-31 | 2003-03-31 | Whitestone water membrane rotary boiling desulfuration dust separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242811 CN2604225Y (en) | 2003-03-31 | 2003-03-31 | Whitestone water membrane rotary boiling desulfuration dust separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604225Y true CN2604225Y (en) | 2004-02-25 |
Family
ID=34168842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03242811 Expired - Fee Related CN2604225Y (en) | 2003-03-31 | 2003-03-31 | Whitestone water membrane rotary boiling desulfuration dust separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604225Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166462A (en) * | 2011-03-31 | 2011-08-31 | 上海理工大学 | Electrostatic composite metal-filler wet-type dust removing and filtering device and filtering method |
| CN102489134A (en) * | 2011-12-07 | 2012-06-13 | 闻喜县瑞格镁业有限公司 | Desulphurization method adopting calcined dolomite dust |
| CN103028318A (en) * | 2012-11-23 | 2013-04-10 | 广东依科电力技术有限公司 | Cyclone plate tower desulfurizing unit and working method thereof |
| CN106422730A (en) * | 2016-08-31 | 2017-02-22 | 张明鑫 | Double wet method flue gas desulphurization and dust removal treatment process |
-
2003
- 2003-03-31 CN CN 03242811 patent/CN2604225Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166462A (en) * | 2011-03-31 | 2011-08-31 | 上海理工大学 | Electrostatic composite metal-filler wet-type dust removing and filtering device and filtering method |
| CN102489134A (en) * | 2011-12-07 | 2012-06-13 | 闻喜县瑞格镁业有限公司 | Desulphurization method adopting calcined dolomite dust |
| CN103028318A (en) * | 2012-11-23 | 2013-04-10 | 广东依科电力技术有限公司 | Cyclone plate tower desulfurizing unit and working method thereof |
| CN106422730A (en) * | 2016-08-31 | 2017-02-22 | 张明鑫 | Double wet method flue gas desulphurization and dust removal treatment process |
| CN106422730B (en) * | 2016-08-31 | 2018-12-07 | 张明鑫 | Double wet process of FGD dust removal process techniques |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |